010-619-J0 Rev B
Page 30
Figure 21:
DC Output Connections (Four Load Breaker Configuration shown)
NOTE
:
Cabling must be done with enough slack to allow the distribution assembly to be locked into
place.
Chassis and Site Ground Connections
WARNING
:
For safety reasons, ensure the system is properly bonded to the building’s ground grid.
This power system is suitable for installation as part of a Common Bonding Network (CBN), and is
intended to be used in a DC-C configuration (common DC return). In this configuration, both the shelf
chassis ground (via power system chassis ground) and common return shall be connected to the
building master ground bus (MGB) or floor ground bus (FGB), in a larger building, to ensure correct
operation of the system and to prevent drifting floating analog (especially current) readings.
The chassis ground connection is located on the center mount rack bracket. Connect to the #10-32 stud
using single-hole lug and hardware as provided.
The system MGB connection is located within the distribution module to the left of the chassis ground
location. The two studs are oriented at a 45-degree angle, which requires a 1/4" on 5/8" center lug.
Battery Connections
There are connection points for two strings of batteries. Use the thumbscrew lock to disengage part of
the distribution assembly and slide it out the right side of the shelf as far as necessary.
Connect the battery (+) cabling to the bottom set of studs and the battery (–) cabling to the upper set.
Lugs required are 1/4" on 5/8" centers.
Breaker Return Connections
The load breaker returns (+) for each of the four breakers are also found on the same part of the (sliding)
distribution assembly.
Connect to the breaker (ground) returns using 1/4" on 5/8" center lugs.
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